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Differential Toxicity of Processed and Non-processed States of CoCrMo Degradation Products Generated from a Hip Simulator on Neural Cells

Overview
Journal Nanotoxicology
Publisher Informa Healthcare
Date 2018 Sep 26
PMID 30251573
Citations 7
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Abstract

Physico-chemical characteristics of the CoCrMo degradation products have played an important role in cytotoxicity and clinical complications on the orthopedic patients who have metal implants. Previous studies have limited reflection on the physicochemical characteristics of the degradation products generated in vivo, which are very different from individual metal particles and/or ions obtained from different commercial sources. In this study, we aimed to understand the differences in toxicity induced by the degradation products in as-synthesized form as well as those obtained after post-processing. The degradation products were generated using a hip-simulator by maintaining physiological conditions closer to in vivo and separated into two batches, one with processing by washing and drying called processed degradation products (PDP) and another batch as 'as-synthesized' degradation product (DP). We studied the dose-dependent toxicity response by neural cells derived from induced pluripotent stem cells. The results of the study show that as-synthesized DPs are more toxic to neural cells even at lower concentrations studied with evident low TC50 (1-5 μg/ml) concentrations compared to PDP (25 μg/ml). Flow cytometric analysis showed a significant (p<.01) increase in uptake of the particles after 24 h and corresponding ROS production in DP-treated cells. RT-PCR analysis of oxidative specific gene expression showed, elevated mRNA levels of NADPH oxidase-1, nuclear transcription factor, superoxide dismutase-2 and glutaredoxin-2 in DP-treated cells after 6 h. The results of the study provided a clear evidence of the differential response of neural cells on the degradation products as a function of concentrations and their chemical nature.

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References
1.
Samelko L, Landgraeber S, McAllister K, Jacobs J, Hallab N . Cobalt Alloy Implant Debris Induces Inflammation and Bone Loss Primarily through Danger Signaling, Not TLR4 Activation: Implications for DAMP-ening Implant Related Inflammation. PLoS One. 2016; 11(7):e0160141. PMC: 4965114. DOI: 10.1371/journal.pone.0160141. View

2.
Pourzal R, Cichon R, Mathew M, Pacione C, Fischer A, Hallab N . Design of a tribocorrosion bioreactor for the analysis of immune cell response to in situ generated wear products. J Long Term Eff Med Implants. 2014; 24(1):65-76. DOI: 10.1615/jlongtermeffmedimplants.2014010305. View

3.
Schmiedberg S, Chang D, Frondoza C, Valdevit A, Kostuik J . Isolation and characterization of metallic wear debris from a dynamic intervertebral disc prosthesis. J Biomed Mater Res. 1994; 28(11):1277-88. DOI: 10.1002/jbm.820281105. View

4.
Catalani S, Rizzetti M, Padovani A, Apostoli P . Neurotoxicity of cobalt. Hum Exp Toxicol. 2011; 31(5):421-37. DOI: 10.1177/0960327111414280. View

5.
Madl A, Liong M, Kovochich M, Finley B, Paustenbach D, Oberdorster G . Toxicology of wear particles of cobalt-chromium alloy metal-on-metal hip implants Part I: physicochemical properties in patient and simulator studies. Nanomedicine. 2015; 11(5):1201-15. DOI: 10.1016/j.nano.2014.12.005. View